Service Performance and Analysis of Advanced Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Failure Analysis".

Deadline for manuscript submissions: 20 August 2025 | Viewed by 1702

Special Issue Editor

Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China
Interests: advanced steels; deformation mechanism; microstructure; mechanical properties; advanced processing; service satefy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The fracture and fatigue of metallic materials have been a research focus since 1964 when a descriptive definition of fatigue is given. Nowadays, a comprehensive understanding of fatigue is the gradual weakening of a material as a result of frequent loading and unloading, and fatigue damage develops and can result in the initiation of a crack, its growth, and sudden fracture. Aiming to enhance the fatigue life of metallic materials, numerous works and efforts have been made. Crack initiation, crack growth, and crack propagation or instability stage have been an accepted process for fatigue damage after systematic investigations. With the development of metallic materials, some novel conceptions, such as transformation-induced energy absorption, transformation-induced crack deflection, and so on, are found to be of significance in increasing the fatigue life of metallic materials. Related to this, a Special Issue has been scheduled to provide a broad forum for the latest results in the Fracture and Fatigue of Metallic Materials. Topics related to the processing, testing, and characterization of fracture and fatigue of metallic materials are invited.

I am very honored to be invited to serve as a Guest Editor of the Journal of Metals for a Special Issue entitled “Service Performance and Analysis of Advanced Metallic Materials”, providing academic exchange opportunities for colleagues from all over the world to support the research of fracture and fatigue of metallic materials.

Dr. Zhenli Mi
Guest Editor

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Keywords

  • metallic materials
  • fatigure behavior
  • fracture mechanism
  • microstructure
  • mechanical properties
  • characterization

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Published Papers (1 paper)

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Research

16 pages, 8638 KiB  
Article
The Effect of Ultrafast Heating on the Microstructure and Mechanical Properties of the 2.2 GPa Grade Hot Forming Steel
by Mai Wang, Jiang Chang, Hongyi Wu, Zhenli Mi, Yanxin Wu and Qi Zhang
Metals 2024, 14(9), 1006; https://doi.org/10.3390/met14091006 - 2 Sep 2024
Viewed by 1329
Abstract
The aim of the present work is to evaluate the effect of ultrafast heating on the microstructure and mechanical properties of hot forming steel. The initial microstructure utilized in this study was a cold-rolled microstructure, and the test steel was heated to full [...] Read more.
The aim of the present work is to evaluate the effect of ultrafast heating on the microstructure and mechanical properties of hot forming steel. The initial microstructure utilized in this study was a cold-rolled microstructure, and the test steel was heated to full austenitization at a rate of 200 °C/s, followed by water quenching. It was observed that the ultrafast heating process significantly refines both the prior austenite grains and martensite laths while inheriting high-density dislocations from the initial cold-rolled microstructure. Consequently, the coupling mechanism between dislocation strengthening and grain refinement strengthening remarkably enhanced both the yield strength and ultimate tensile strength of the test steel. Eventually, the yield strength of the hot forming steel reached 1524 MPa, along with an ultimate tensile strength of 2221 MPa and uniform elongation of 5.2%. Full article
(This article belongs to the Special Issue Service Performance and Analysis of Advanced Metallic Materials)
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